Proyectos de Subversion Iphone Microlearning - Nuevo Interface

//

//  GridGalleryView.swift

//  twogetskills

//

//  Created by Efrain Yanez Recanatini on 3/7/22.

//

import Foundation

import SwiftUI

struct GridGalleryView: View {

    @EnvironmentObject private var networkMonitor : NetworkMonitor

    @EnvironmentObject private var appNavigation : AppNavigation

    @ObservedObject private var viewModel : GalleryGridViewModel = GalleryGridViewModel()

    private var appData = AppData.sharedInstance

    private var capsuleTitle : String = ""

    init()

    {

        self.viewModel.fetch(capsuleUuid: appData.capsuleUuidActive, userUuid: appData.userUuid)

        let capsuleDao = CapsuleDao.sharedInstance

        let capsule = capsuleDao.selectByUuid(uuid: appData.capsuleUuidActive)

        if capsule.name.count > Constants.APP_BAR_TITLE_MAX_LENGTH {

            capsuleTitle = String(Array(capsule.name)[0...Constants.APP_BAR_TITLE_MAX_LENGTH]) + "..."

        } else {

            capsuleTitle = capsule.name

        }

    }

    var body: some View {

        GeometryReader { geometry in

        ZStack {

            if self.viewModel.hasPrevious()  {

                Button(action: {

                    self.viewModel.previous()

                    self.completeSlide(position: self.viewModel.slideActiveIndex)

                    appData.slideUuidActive = self.viewModel.slides[self.viewModel.slideActiveIndex].uuid

                    appData.save()

                }, label: {

                    Image(systemName: "arrow.left")

                })

                .frame(width: 40.0, height: 40.0, alignment: .center)

                     .cornerRadius(/*@START_MENU_TOKEN@*/3.0/*@END_MENU_TOKEN@*/)

                .background(Color("color_button_gallery_background"))

                .foregroundColor(Color("color_button_gallery_foreground"))

                    .offset(x: -1 * ((geometry.size.width / 2) - 30), y :  25).zIndex(10000)

            }

            if self.viewModel.hasNext() {

                Button(action: {

                    self.viewModel.next()

                    self.completeSlide(position: self.viewModel.slideActiveIndex)

                    appData.slideUuidActive = self.viewModel.slides[self.viewModel.slideActiveIndex].uuid

                    appData.save()

                }, label: {

                    Image(systemName: "arrow.right")

                })

                .frame(width: 40.0, height: 40.0, alignment: .center)

                .background(Color("color_button_gallery_background"))

                .foregroundColor(Color("color_button_gallery_foreground"))

                .offset(x: ((geometry.size.width  / 2) - 30), y :  25).zIndex(10000)

            }

            VStack(spacing: 0) {

                HStack {

                    Button(action: {

                        appNavigation.subpageActive = .slides

                    }, label: {

                        Image(systemName: "chevron.backward")

                        .frame(width: 32, height: 32, alignment: /*@START_MENU_TOKEN@*/.center/*@END_MENU_TOKEN@*/)

                        .aspectRatio(contentMode: .fit)

                            .foregroundColor(networkMonitor.status == .disconnected ? Color("color_network_disconnected_foreground") : Color("color_app_bar_foreground"))

                    })

                    .padding(.leading, 16)

                    Text(networkMonitor.status == .disconnected ? Config.LANG_ERROR_NETWORK_MESSAGE_SHORT :  capsuleTitle)

                    .font(Font.custom(Config.FONT_NAME_REGULAR, size: Config.FONT_SIZE_APP_BAR_HEAD1 ))

                        .foregroundColor(networkMonitor.status == .disconnected ? Color("color_network_disconnected_foreground") : Color("color_app_bar_foreground"))

                        .padding(.leading, 4)

                    Spacer()

                }

                .edgesIgnoringSafeArea(.top)

                .frame(height: 50)

                .background(networkMonitor.status == .disconnected ? Color("color_network_disconnected_background") : Color("color_app_bar_background"))

                Divider().background(networkMonitor.status == .disconnected ? Color("color_network_disconnected_background") : Color("color_app_bar_background"))

                CardGalleryView(

                    slideUuid:  self.viewModel.slides[0].uuid

                )

                .environmentObject(appNavigation)

                .transition(.slide)

                .gesture(

                    DragGesture(minimumDistance: 60).onEnded {

                        if $0.startLocation.x > $0.location.x {

                            print("left")

                            if self.viewModel.hasPrevious()  {

                                self.viewModel.previous()

                                self.completeSlide(position: self.viewModel.slideActiveIndex)

                                appData.slideUuidActive = self.viewModel.slides[self.viewModel.slideActiveIndex].uuid

                                appData.save()

                            }

                        } else if $0.startLocation.x < $0.location.x {

                            print("right")

                            if self.viewModel.hasNext() {

                                self.viewModel.next()

                                self.completeSlide(position: self.viewModel.slideActiveIndex)

                                appData.slideUuidActive = self.viewModel.slides[self.viewModel.slideActiveIndex].uuid

                                appData.save()

                            }

                        } else {

                            print("none")

                        }

                    })

                /*

                TabView(selection: self.$selectedTab) {

                    ForEach(0..<self.viewModel.slides.count) { index in

                        CardGalleryView(

                            slideUuid:  self.viewModel.slides[index].uuid

                        )

                        .environmentObject(appNavigation)

                        .tag(index)

                        .transition(.slide)

                    }

                }

                //.tabViewStyle(PageTabViewStyle(indexDisplayMode: .automatic))

                .tabViewStyle(PageTabViewStyle(indexDisplayMode: .never))

                .onChange(of: self.selectedTab) { selectedTab in

                    appData.slideUuidActive = self.viewModel.slides[selectedTab].uuid

                    appData.save()

                    completeSlide(position: self.selectedTab)

                }.onAppear {

                    var position : Int = 0

                    var i : Int = 0

                    while i < self.viewModel.slides.count {

                        if appData.slideUuidActive == self.viewModel.slides[i].uuid {

                            position = i

                        }

                        i += 1

                    }

                    self.selectedTab =  position

                    completeSlide(position: self.selectedTab)

                }*/

            }

            .onAppear {

                var position : Int = 0

                var i : Int = 0

                while i < self.viewModel.slides.count {

                    if appData.slideUuidActive == self.viewModel.slides[i].uuid {

                        position = i

                    }

                    i += 1

                }

                self.viewModel.slideActiveIndex = position

            }

            }

        }

    }

    private func completeSlide(position: Int)

    {

        if self.viewModel.slides[position].type == Constants.SLIDE_TYPE_IMAGE {

            let dataService = DataService()

            dataService.completeSlide(slide: self.viewModel.slides[position])

        }

    }

}

struct GridGalleryView_Previews: PreviewProvider {

    static var previews: some View {

        //GridGalleryView(capsuleUuid: "C123", position: 2)

        GridGalleryView()

    }

}